Since Quickbeam has not yet reviewed the E2L yet does anyone know what Surefire means when it says 3 hours high output followed by 3 hours usable light? I know the light is rated for 30 lumens but just what can one expect after that? Also is the light (or for that matter the E1L) regulated? And one further question, has anyone used either model yet? I am very curious if it has good sidespill or not. Thanks